P0305 CHRYSLER -

Question

the code is p0305 but im getting a knocking noises

Answer 1

P0304 and 305 are misfire codes. The knock sensor doesn't make noises. If you have a banging sound then it's possible these code are there due to an internal issue with the engine. IF you are hearing  snapping type of sound then it's likely one or both of the coils are leaking spark onto the engine causing the misfire and the noise.